package com.itheima.reggie.config;

import com.itheima.reggie.common.JacksonObjectMapper;
import org.apache.commons.lang.text.ExtendedMessageFormat;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

/**
 * ClassName: WebMvcConfig
 * Package: com.itheima.reggie.config
 * Description:
 *
 * @Author www.youkewang.top
 * @Create 2023-10-21 16:56
 * @Version 1.0
 */
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {
    // 设置静态资源映射
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
    }

    /*
    * 扩展mvc框架的消息转换器
    * */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        // 创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        // 设置对象转换器底层使用Jackson将java对象转换成JSON
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        // 将上面的消息转换器对象追加到mvc框架的转换器集合中,要放到最前面优先使用
        converters.add(0, messageConverter);

    }
}
